Thirty percent. According to official website of Chengnan College of Changsha University of Science and Technology, there are 2 16 graduates in Chengnan College of Changsha University of Science and Technology, 67 of whom successfully took the postgraduate entrance examination, with an admission rate of 30%. Changsha University of Science and Technology is located in Changsha City, Hunan Province. It is a university jointly established by the Ministry of Transport and the Hunan Provincial People's Government.